12213226368 has 96 divisors (see below), whose sum is σ = 40165547760. Its totient is φ = 3489490944.

The previous prime is 12213226367. The next prime is 12213226369. The reversal of 12213226368 is 86362231221.

12213226368 is a `hidden beast` number, since 1 + 2 + 2 + 13 + 2 + 2 + 636 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (12213226367) and next prime (12213226369).

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12213226367) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 749205 + ... + 765332.

Almost surely, 2^12213226368 is an apocalyptic number.

12213226368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12213226368 is an abundant number, since it is smaller than the sum of its proper divisors (27952321392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12213226368 is a wasteful number, since it uses less digits than its factorization.

12213226368 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514564 (or 1514549 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

Adding to 12213226368 its reverse (86362231221), we get a palindrome (98575457589).

The spelling of 12213226368 in words is "twelve billion, two hundred thirteen million, two hundred twenty-six thousand, three hundred sixty-eight".